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TJ101

Member Since: 30 May 2007
Location: Taunton Somerset
Posts: 3747

2015 Defender 110 Puma 2.2 XS CSW Montalcino Red

I have had both,, and still have a TD5 90 for the lanes etc with a GKN fitted

With hindsight, would always go the overdrive route if possible,, trouble is, as far as i know, you can no longer get them,, Ashcrofts did do them,
From memory last price was getting on for £1500, so the gear set up is a lot cheaper, even secondhand, if you can find one, they still make £500-£700

Still try and go for 6th gear all the time, plus good to drive every now and again, to appreciate how much more refined the Puma is

California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1

Main Brian James Trailer Dealer for South West UK

10th Nov 2011 8:55pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7696

2011 Defender 110 Puma 2.4 USW Stornoway Grey

GKN and Roverdrive i thought were the only two OD suppliers.

Ashcrofts do UD, didn't know they did an OD too. Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

10th Nov 2011 9:32pm

TRR Motorsport

Member Since: 07 Oct 2010
Location: Leicestershire
Posts: 115

2010 Defender 90 Puma 2.4 ST Galway Green

From personal experience I've had both on my 110. the GKN overdrive had all the benefits you'd expect, no change to 1st ratio, higher MPG, quieter and less tiring at speed.

On the downside I lunched two of them, both just outside the warrenty! It turned out that the GKN overdrive unit is based on a Laycock unit used in a Triumph. It wasn't designed to take high tourque/high loads and would be prone to overheating.

A fat lot of use when fully laden with service gear and a Rally car being trailered behind us then!

Now I run the Ashcroft Disco transfer gears. It isn't as nice towing (1st is too high and you can't down shift as quick without the overdrive when losing speed up steep hills.)

In all honesty. it needs a remap. I've been saying that since i fitted the disco gears, maybe one day I'll get round to it. "If it ain't sideways, you just ain't tryin'!

1st Dec 2011 2:24pm

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